3M Dynatron Blue Cream Hardener mixes with 2-part fillers, putties and glazes to create high-quality, long-lasting repairs. When filler and hardener are mixed, a chemical reaction occurs to create a mixture that will deliver a strong, lasting repair. Our hardener is smooth and easy to mix with filler.
- Blue cream hardener for use with premium fillers, putties & glazes
- 2.75 oz. tube